366 RHODODENDRONS OF BOOTAN. 
grace. It appears to be an arborescent species, like the preceding, to 
which it is nearly allied, and has very similar buds. 
To this section will also be referred R. Falconeri, R. Blumei, R. 
Hodgsoni, R. grande, R. argenteum, and R. longifolium. 
21. RHODODENDRON LONGIFOLIUM, Nutt. 
Arboreum: foliis amplis prelongis, obovato-lanceolatis, in petiolum 
crassum attenuatis, planis, demum glaberrimis, subtus nitidis argen- 
teis, reticulatis, costatis; bracteis sericeis ; pedunculis brevibus; caly- 
cibus obsoletis brevissime lobatis; corolla . . .? capsulis maximis, 
oblongo-ovalibus, basi obliquis, glabriusculis, transversim rugosis, 
subsedecim-locularibus ; seminibus ovalibus, lato-marginatis, erosis. 
Has. In the forests of Bootan, on the slopes of the Oola mountains 
at an elevation of 6500—7500 feet above the sea-level. 
A tree, 30 feet high; the leaves 9-15 inches long, 2—4 wide in the 
middle, at first pubescent, at length smooth or nearly so, gradually 
narrowed downwards, obovate-lanceolate, silvery and whitish beneath, - 
strongly retieulated as well as veined; buds very large. Capsule 2 
inches long, about 1 inch wide, about sixteen-celled, oblique at base, 
transversely wrinkled, at length smooth. Seeds oval or elliptic, with 
a wide and torn border, light brown. Bud-scales of the leaves nearly 
smooth. 
As a species, perhaps scarcely distinct enough from R. argenteum ; 
the leaf however appears to be wider and more reticulated ; nor does it 
show the inner red bud-scales of that species. With the flower, no 
doubt large, we are unacquainted. The capsule is larger than that of 
any other species, if we except that of R. Nuttalii. 
- fo all appearance nearly hardy in this climate. The adult leaves 
almost resemble those of Magnolia Umbrella ! 
. 22. RHODODENDRON BLUMEI, Nutt. 
Arboreum? foliis oblongo-ellipticis, aeutis, basi rotundatis, subsinuatis, 
glabris, subtus pennimerviis, argenteo-tomentosis, niveis, longe pe- 
tiolatis, junioribus puberulis; calyce . . . corolla . . . 
Has. Bootan, on mountains beyond the Bhorelli river. Found also in 
- Bootan by the late Mr. Griffiths, according to specimens in the her- 
_ barium of Sir William Hooker, where it was associated with R. Hodg- 
-soni as a distinct variety, and with which, I think, were some scattered 
